Sonic Team Split
From Gamespot:
Our sources in Japan spoke with a former Sega employee who told us that the Sonic Team has been divided into three parts (Naka team, Iizuka team, and Oshima team), as some employees were not happy working with Yuji Naka. The Iizuka team is in the states working on the US version of Sonic Adventure; the Oshima team is working on a new project (possibly featuring a brand new character); and the Naka team is working on NiGHTS 2.
This post was originally written by TSSZ News.